Skid brake



Julyazs, 1946.

N. B. IRVING SKID BRAKE Filed April 50, 1945 "'2 sheets-sheet 1` Nffw'ng Patented July 23? 1946 UNITED 'l STATESfT' OFFICE y 2,404,445 n o. i

` SKmRAKE Norman B. Irving', Philadelphia, Pa. Application April 30, 1945,l Serial No. 591,147 I This present invention relates to improvements in skids consisting in the provision of -abraking mechanism whereby the speed of containers sliding on the skids may be controlled with a view of safeguarding humanV life and .health and protecting the containers handled from being damaged or destroyed. l

The main object of the invention is the design 'of a skidding' structure including a track and carria'ge slidable thereon and the provision ofA a brake normally'retracted within the track,`and adapted for movement against the bottom of the carriage for controlling the speed thereof.

With these and other objects in view which will become apparent as the following disclosure is understood, the invention consists in the novelty of features, combination and arrangement of parts as will behereinafter more fully described and claimed in the appended claims.

The description should be read in connection with the accompanying drawings forming part of this application and in which:

Figure l is a top plan view of the preferred embodiment of my invention;

Figure 2 is a central, longitudinal, vertical section of the same;

Figure 3 is a fragmentary side view of the upper end;

Figures 4 and 5 are transverse sections on lines 4-4 and 5-5 respectively of Figure 1.

In the drawings in which like reference characters designate like or similar parts, numeral 2 indicates one of a pair of horizontally spaced beams of wood, steel or any other suitable material which are notched at their bottom sides to receive spaced transverse braces 3. These braces hold the beams in the desired spaced relation and are attached in pairs to either end portion of the beams. Above the outer brace of the pair attached to the upper end of the beams (Figure 2) are formed in the latter registering holes in which a shaft '4 is journaled. The front end (Figure 3) of the shaft protrudes outwardly of the adjacent beam and carries a handle 5 which may be swung through a predetermined angle bounded by stop pins 6 xed to and extending from the outer side of the adjacent beam. The shaft carries a radial pin 1 that engages either of the fixed stop pins at the end of a swing. The shaft portion between the beams carries also a pair of radially extending pins 8 each of which slides over one of the confronting inner vertical sides of the beams and prevents'axial displacement of the shaft.

At an intermediate point between the beams the shaft is provided with a radially extending arm p of the latter.

Ifunction which will become manifest as the description proceeds,

9 which has an aperture in its free end extending parallel tothe axis of the shaft. A pin I0 is inserted in the aperture andalso in an aperture k'formed in the lower free end of a lug I I which is attached at its upper end to and extends from the lower side of the neck portion I2 of a brake member I3. *The* latter is of relatively narrow horizontal width and larger vertical depth and comprises an enlarged portion I4 which extends considerably above and below the upper and lower edges'of the neck portion. The upper edge of the enlarged portion merges at the top end (Figure' 2) into the upper edge of the neck portion. The lower edge of the enlarged brake member portion has two curved eut-outs I5 performing a The braking mem'ber is housed in a cylindrical casing I6 which is disposed between and in parallelism with the beams and attached at its ends by rivets I1 to the intermediate portion of the two intermediate braces 3. 'Ihe brake casing is provided on the upper side with a longitudinal slot I8 which stops short of both ends and permits the emergence of the upper edge part of the enlarged portion of the brake member. Through the casing extended at right angles to the plane of the brake member are two rods I9 that are spaced from one another to the same extent that corresponding portions of the cut-outs are spaced. In inoperative position of the brake member the top edge portion of each cut-out rests on a rod (Figure 2) and a counter-clockwise movement of the handle 5 will cause a movement of the brake member-to the left and upward so that the top edge of the brake member which is normally flush with the top surf-ace of the casing, rises above the latter and -c mes into frictional engagement with the under s1de of a slide or carriage 20. The latter is slidably disposed on the beams and of a width equal to the spacing of the outer sides The intermediate portion 2| of the carriage is slightly dished' to make a container especially a barrel stay on the carriage; '.lrom the lower side of the carriage extends a guide 22 having the shape of a U (Figure 4) and embracing the casing described so that the carriage ls slidably and non-detachably connected to the apparatus described.

The latter is shown in Figure 2 as mounted upon the edge of a pit or cellar so that the outer brace of the upper pair engages with its inner corner edge the ground near the edge of the cellar with suiiicient friction to prevent the apparatus, the lower end of which rests upon the floor of the 3 cellar, from sliding down. More elaborate precautions to insure the safety of the structure from sliding may be taken.

In Figures 2 and 4 dotted lines indicate a container 23 placed on the carriage disposed upon the upper end of the beams. During the downward motion of the carriage and load the brake member by the proper manipulation of the handle may be brought to bear against the bottom surface ofthe carriage sothat the arrival of the latter and the container carried thereby at the lower end of thefapparatus occurs at a speed which is not a menace to the life or health of the cam means for engaging and laterally displacing the brake into engagement with the carriage.

2. VA skidding apparatus comprising a skeletonized beam structure, a carriage slidable on the means fulcrumed to the structure and connected person or persons receiving the container in the cellar nor to the safe condition of the container riding on the carriage.

While I have described and illustrated the f preferred embodiment of my invention in several of vits specific details, the latter are not to be construed as limitations of my invention, but merely as examples thereof. Changes and modications obvious to those skilled in the art may be resorted to without departing from the spirit and scope of the invention as dened in the appended claims.

- Among the various possible modications, I mention only the design of the beams as members of variable length andcomprising partly or wholly telescoped parts.

What I claim and desire to secure by Letters Patent is;

1. In a skidding structure, a support adapted to be disposed at an incline, a, carriage slidable on the support and guided thereby, a brake retractable into the support and operable into engagement with the carriage, and means for operating the brake, said brake operating means including a manually actuated element for moving the brake longitudinally of the support and to the brake.

3. A skidding apparatus comprising a pair of spaced, braced rails, a carriage disposed for movement longitudinally of the rails and carrying a guide, a casing between the rails supported by some ofthe braces and coacting with the guide and'having a longitudinal vertical slot and including cam surface engaging means, a brake member housed in the casing beneath the slot and including cam surfaces, and-means for moving the brake kmember longitudinally of the casing for emergence through the slot against the carriage in response to the coaction of the cam surfaces and their engaging means.

4. A skidding apparatus comprising a track, a carriage movable on the track, a slotted housing within the track and guiding the carriage, a brake member guided by the slot of the housing and including cam portions, means carried by the housing for cooperating with the cam portions for moving 'the brake member through the slot during movement of the memberlongitudinally of `the housing, and means for moving the brake member longitudinally of the housing,

NORMAN B. IRVING. 

